@thebigcrunch/sdk/src/globalVars.js

The big crunch SDK library

/**
 * this file is used to store global variables in window object in browser or local variable in NodeJS
 */
import io from "socket.io-client";

// check whether window is defined in the context
if (typeof window === "undefined") {
    global.window = {
        location: { href: "" },
        addEventListener: () => {},
        parent: { postMessage: () => {} },
        nodejs: true,
        crunchSocket: null,
        btoa: str => Buffer.from(str).toString("base64")
    };
    global.atob = str => Buffer.from(str, "base64").toString();
    global.btoa = str => Buffer.from(str).toString("base64");
}

if (!window.tbcListeners) {
    window.tbcListeners = {};
}

export const getSpaceListener = spaceId => {
    return window ? window.tbcListeners[spaceId] : null;
};

export const createCrunchSocket = url => {
    window.crunchSocket = io(url);
    return window.crunchSocket;
};

export const isCrunchSocketAvailable = () => !!window.crunchSocket;

export const addSpaceListener = (spaceId, emitter, lastValue, lastSpace) => {
    window.tbcListeners[spaceId] = { emitter, lastValue, lastSpace };
    return window.tbcListeners[spaceId];
};

export const getCrunchSocket = () => window.crunchSocket;